Community

Greetings,
I just joined here, so sorry if this has been posted before.
I'm reading TDPL and the example on page 8 doesn't compile. I'm using the
latest GDC with GCC 4.4.5. I've checked the errata, but nothing for this
error.
import std.stdio;
import std.string;
void main(){
size_t[char[]] dictionary;
foreach(line; stdin.byLine()){
foreach(word; splitter(strip(line))){
if(word in dictionary) continue;
auto newID = dictionary.length;
dictionary[word] = newID;
writeln(newID, '\t', word);
}
}
//writeln(dictionary.length);
}
This is the error:
dictionary.d:12: Error: associative arrays can only be assigned values with
immutable keys, not char[]
If i use immutable keys, it works, but it defeats the purpose. So what's
wrong with the code?